<div>
  <table class="table table-bordered table-stripped">
    <% @users.limit(20).each_slice(4) do |users| %>
      <tr>
        <% users.each do |user| %>
          <td class="roll_div" style="border: solid 1px;"><%= user.phone %></td>
        <% end %>
      </tr>
    <% end %>
  </table>
  该类别一共有: <%= @users.size %> 人，请指定抽取人数:
  <%= text_field_tag 'choosen_number' %>
  <%= hidden_field_tag 'hidden_user_name_1', @users.pluck(:name).join(",") %>
  <%= button_tag '开始', id: 'go' %>
  <br/>
  <div id="load_div_1" style="width: 100%; height: 30px; border: solid 1px;" >
    <div id="load_inner_div_1" style="width: 0%; height: 100%; background-color: blue;" ></div>
  </div>
</div>

<script type="text/javascript">
  $('#go').click(function(){
  });
</script>
